Pavements, wastewater, erosion control

February 2009 » New & Noteworthy
Pavement, wastewater, and erosion control products and services worth a look.

Chicago installs permeable pavers
The Chicago Park District installed 235,000 square feet of Unilock Eco-Priora Coral Gem permeable, interlocking concrete pavers as part of the Buckingham Fountain Renovation Project, making it the largest decorative permeable paving area in the United States, according to Unilock. The pavers meet three critical requirements: they satisfy federal guidelines for ADA accessibility requirements, they match the original fountain paving color and appearance, and they satisfy stormwater management requirements without the need for additional water storage in surface basins or underground chambers. Permeable pavers allow water to infiltrate below the paving surface and detain stormwater runoff until after a peak storm surge. They are a recommended best management practice by the U.S. Environmental Protection Agency (EPA) and a recommended construction practice under low impact development and LEED guidelines.
Unilock—www.unilock.com

Pump control for onsite wastewater treatment
Aquaworx, a division of Infiltrator Systems, Inc., offers the Aquaworx Intelligent Pump Control (IPC) Panel for onsite wastewater treatment systems to monitor liquid levels, control pumping time intervals, and log events in real time. The IPC Panel uses pressure transducer technology, eliminating the need for floats. It stores as many as 4,000 events. The Mountable and Removable Controller (MARC) is a programmable user interface with a removable SD memory card to transfer information from the panel to a computer. The IPC Panel offers enhanced system operational assessment, troubleshooting, and maintenance to installers and service providers, and monitors multiple types of system events, each stored with a date and time stamp. The IPC Panel also incorporates an embedded microprocessor in the pump controller and a floatless pressure transducer in the pump chamber for expandable capability.
Aquaworx—www.aquaworx.com

Polymer composite pavement overlay
PolyCon Manufacturing’s E-Krete is a polymer composite micro-overlay (PCMO) that bonds to asphalt pavement, chip seal, polished stone, and other bituminous products, as well as concrete and primed metal. According to the company, E-Krete is unaffected by water, UV, ice, oxidation, automotive fluids, aircraft fluids, oil, diesel, and gasoline. Cracks in oxidized pavement are filled by the PCMO material as the asphalt pavement is capped with a 1/8-inch lift of E-Krete. The company says it is the only cementitious pavement preservation material approved by the Federal Aviation Administration, the EPA, and The U.S. Army Corps of Engineers, and is currently in the approval process in seven state transportation departments. According to the company, E-Krete provides a Solar Reflectivity Index that exceeds the requirement for LEED projects.
PolyCon Manufacturing—www.polyconmfg.com

Training for stormwater compliance
Shirley D. Morrow, CPESC, CISEC, opened a new training and consulting company, ABC’s of BMP’s, LLC. Morrow has been providing training and consulting in the stormwater and erosion and sediment control industries for more than 16 years, training more than 4,000 general contractors, superintendents, public policy makers, engineers, and project managers for clients including Wal-Mart Stores, the International Erosion Control Association, and StormCon. She works closely with engineering firms and general contractors to provide guidance on stormwater compliance with Stormwater Pollution Prevention Plans and site best management practices. She also provides training and consulting for federal, state, and municipal agencies; engineering firms; and general contractors, as well as expert investigations in litigation cases.
ABC’s of BMP’s—www.abcbmp.com

’Concrete’ cells reuse waste tires
The Reinforced Aggregates Company’s patented Mechanical Concrete, developed by a civil engineer seeking a reuse for waste tires, is a confined-aggregate, cellular "concrete" made by confining stone aggregates with a Mechanical Cement cylinder. Mechanical Concrete uses standard, tread-worn automotive tires with both sidewalls removed as the Mechanical Cement cylinders. These worn-out automotive tire treads retain their structural tensile strength and function as the low-cost, rugged, tensile cylinder for the Mechanical Concrete cell. It requires no curing and is instantly ready to support loads on roadways, foundations, retaining walls, bridge abutments, dams, and other engineered structures. Because it has high porosity, it also can function effectively in drainage and stormwater retention applications. Mechanical Concrete is approved on a project basis by the West Virginia Division of Highways Materials Division. It has been lab tested and field tested with full-scale demonstration projects.
The Reinforced Aggregates Company—www.mechanicalconcrete.com

Reinforced vegetation system website
Propex Geosynthetics launched a new website for its ArmorMax Anchor Reinforced Vegetation System at http://armormax.geotextile.com. Information on the website about ArmorMax includes features and benefits, case studies, a downloadable product brochure, and how the product is used as a permanent solution for structural and non-structural applications.
Propex Geosynthetics—www.geotextile.com


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